Firearm handguard



FIG. 1 is a front right isometric view of a firearm rail according to the present disclosure;

FIG. 2 is a front elevation view of the firearm rail of FIG. 1;

FIG. 3 is a rear elevation view of the firearm rail of FIG. 1;

FIG. 4 is a right side elevation view of the firearm rail of FIG. 1;

FIG. 5 is a left side elevation view of the firearm rail of FIG. 1;

FIG. 6 is a top view of the firearm rail of FIG. 1; and,

FIG. 7 is a bottom view of the firearm rail of FIG. 1.

The broken lines in the Figures are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a firearm handguard, as shown and described. 